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How the Pentagon Started Taking U.F.O.s Seriously | The New Yorker newyorker.com 3 facts
measurementAccording to a government memo, twenty percent of U.F.O. reports investigated by Project Sign lacked ordinary explanations.
measurementA Project Sign memo stated that 20% of U.F.O. reports lacked ordinary explanations.
claimProject Sign investigators filed a top-secret 'Estimate of the Situation' memorandum that leaned in favor of the extraterrestrial hypothesis regarding U.F.O. sightings.